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논문 기본 정보

자료유형
학술저널
저자정보
Jin Zhou (University of California) Zhelun Zhang (University of California) Tessa Williams (University of California) Sashi K. Kunnath (University of California)
저널정보
한국콘크리트학회 International Journal of Concrete Structures and Materials International Journal of Concrete Structures and Materials Vol.15 No.4
발행연도
2021.7
수록면
481 - 495 (15page)

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초록· 키워드

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The development of fragility functions that express the probability of collapse of a building as a function of some ground motion intensity measure is an effective tool to assess seismic vulnerability of structures. However, a number of factors ranging from ground motion selection to modeling decisions can influence the quantification of collapse probability. A methodical investigation was carried out to examine the effects of component modeling and ground motion selection in establishing demand and collapse risk of a typical reinforced concrete frame building. The primary system considered in this study is a modern 6-story RC moment frame building that was designed to current code provisions in a seismically active region. Both concentrated and distributed plasticity beam–column elements were used to model the building frame and several options were considered in constitutive modeling for both options. Incremental dynamic analyses (IDA) were carried out using two suites of ground motions—the first set comprised site-dependent ground motions, while the second set was a compilation of hazard-consistent motions using the conditional scenario spectra approach. Findings from the study highlight the influence of modeling decisions and ground motion selection in the development of seismic collapse fragility functions and the characterization of risk for various demand levels.

목차

Abstract
1. Introduction
2. Description of Selected Building
3. Modeling Considerations
4. Ground Motion Selection
5. Nonlinear Seismic Simulations
6. Collapse Fragility Functions—Effect of Modeling Considerations
7. Conclusion
References

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